CN108467328A - A kind of rollable blasting explosive for explosion welding - Google Patents
A kind of rollable blasting explosive for explosion welding Download PDFInfo
- Publication number
- CN108467328A CN108467328A CN201810282806.2A CN201810282806A CN108467328A CN 108467328 A CN108467328 A CN 108467328A CN 201810282806 A CN201810282806 A CN 201810282806A CN 108467328 A CN108467328 A CN 108467328A
- Authority
- CN
- China
- Prior art keywords
- explosive
- rollable
- water
- explosion welding
- explosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/32—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with a nitrated organic compound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
- B23K20/08—Explosive welding
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0008—Compounding the ingredient
- C06B21/0025—Compounding the ingredient the ingredient being a polymer bonded explosive or thermic component
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0066—Shaping the mixture by granulation, e.g. flaking
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/001—Fillers, gelling and thickening agents (e.g. fibres), absorbents for nitroglycerine
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/30—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with vegetable matter; with resin; with rubber
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of rollable blasting explosive for explosion welding, contain oxidant, fuel agent, water, emulsifier, density adjuster and additional a small amount of sensitizer.It is characterized in that the explosive, which contains, low density material, explosive density is 0.2~1.0g/cm3, it is that one kind is rollable, density is adjustable, the adjustable flake powder of thickness.Low density material is that unit weight is 0.01~0.1g/cm3Polyurethane or polystyrol foam material.After metering by oxidant salt and water, it is heated to 80 DEG C or more, and be stirred, after so that salt is completely dissolved and is formed aqueous solution, it is slowly added into the mixing oil phase of fuel agent, emulsifier, under quick stirring action, pasta water-in-oil emulsion night or matrix are gradually formed, when being cooled to 50~80 DEG C, is mixed into low density material and a small amount of sensitizer, it is finally allowed to cool molding, forms the explosive of the present invention.
Description
Technical field
The present invention relates to energetic material or explosive technical field, specifically a kind of rollable sheet or plate are rollable
Composite explosives, the Explosion composite or welding of explosive of the invention especially suitable for metal.
Background technology
The explosive welding of metal is one of important new process and the new technology in the high field of explosive processing, it is made using explosive
A kind of technology of great practical value of welding and production metallic composite between different metal is carried out for the energy.Explosive welding passes through
Cross the research, application and development of decades, it has also become more using explosive in metallic explosive manufacture field, application is wider, so far
For development prospect preferably with an active branch, achievement and product are widely used to chemical industry, machinery, mining industry, building, shipbuilding
In other industry.For blasting explosive for explosion welding, in principle for, any explosive can be used in explosion weld process.So
And with explosive welding put into practice and study go deep into, people to be applicable in explosive kind and performance understanding it is more and more, to it
It is required that being increasingly stringenter.Therefore, some explosives having used are eliminated, some new kinds occur.Research and life
It is particularly significant to produce the explosive being applicable in explosive welding.These explosives must satisfy following general and special requirement：
(1) detonation rate is relatively low, is generally advisable with 2500m/s or so.
(2) explosive used in should have stable physics, chemistry and explosion property.
(3) it is in close contact with coating after explosive is laid, should not there is gap therebetween.
(4) explosive source used in is wide, inexpensive, processing and easy to use.
(5) explosive used in has higher stability and safety during processing, transport, storage and use.
(6) explosive waterproof used in does not absorb water and deliquesces, at a certain temperature in medium have stability.
However the explosive used in explosive welding at present not all meets above-mentioned requirements.For glue and emulsion, by
In it at paste, it is difficult to the cloth medicine on cladding plate, and its explosion velocity is too high, is unsatisfactory for explosive welding requirement；Explosion composite explosive at present
Diluent is mainly added using powdery ammonium ladder detonator, after be improved to use powdery emulsifying explosive, bulking ammonium nitrate explosive, powdered modified
Diluent is added in ammonium nitrate-fuel oil mixture or above two explosive, but its energy consumption is high, and explosion velocity is also high, and powdery ammonium nitrate is easy moisture absorption
Caking makes its free-running property poor, is unfavorable for cloth medicine.
Invention content
The present invention provides a kind of sheet suitable for explosive welding or tabular high polymer composite explosives, and explosive density can
Tune, cloth drug thickness degree is adjustable, water resistant moisture resistance, and explosive welding uses very convenient.Its formula includes：General common oxidant, can
Fire agent, water, a small amount of sensitizer and high polymer jointing material.
Oxidant：Mainly ammonium nitrate also includes that a small amount of other inorganic nitrates and perchlorate, dosage account for about fried
The 55%~75% of medicine total amount；In addition it in order to reduce explosive crystallization point temperature also needs that appropriate sodium nitrate and uric acid is added, dosage is about
Account for the 6%~16% of explosive total amount.
Fuel agent：This is used such as fuel oil and various waxy fuels with the immiscible and emulsible hydrocarbon of water
Amount, which accounts for about explosive total amount 3~4%, to be advisable.
Emulsifier：Based on nonionic emulsifier and supplemented by negative ion type emulsifier, compound emulsifying agent is formed, is used
Amount accounts for about the 0.5~2% of explosive total amount.
Sensitizer：Common various single chmical compound explosives can be used as the sensitizer of this explosive, such as TNT, hexogen, pacify very much
Deng dosage is about the 0~5% of explosive total amount
Water：The content of water accounts for about the 6%~20% of explosive total amount.
Low-density carrier material：Various openings or silent porosity low density material can be used, as flexible polyurethane foams
Rubber etc., what dosage accounted for about explosive total amount 2~15% is advisable.
Each constituents summation is 100%.
The manufacturing method of the present invention is as follows：
(1) prepared by water phase：The oxidant salt for accounting for explosive composition 68~81% is added and accounts for explosive composition 10~12%
Water, heating are dissolved at 80 DEG C or more, are made into aqueous oxidizing agent solution.
(2) prepared by oil phase：The fuel agent for accounting for explosive composition 3~4% is stirred under heating conditions, waits for all dissolving
Afterwards, heat preservation is between 90~100 DEG C.
(3) it emulsifies：Under rapid stirring, aqueous oxidizing agent solution is continuously fed into oil phase, by certain time
(being determined by dosage) just becomes pasta emulsified bases.
(4) it is sensitized：The sensitizer for accounting for explosive composition 0%~5% is added in emulsified bases, obtains density after mixing
Uniform emulsifying mixt.
(5) it is molded：A certain amount of low-density high molecular material and above-mentioned emulsifying mixt are weighed, is uniformly mixed, it is then cold
But it is molded.
(6) dry：With 50~80 DEG C of heated-air drying, remove the moisture content in explosive, make water content 1% hereinafter, or
Person does not remove any moisture content and a kind of explosive welding high polymer a mixing flat board shaped explosive charge is made.
High polymer a mixing flat board shaped explosive charge its key problem in technology in development process is as follows：
1. the formula of high polymer a mixing flat board shaped explosive charge provided by the present invention, used high molecular polymer carrier,
Preferably marketed polystyrene or polyurethane foam rubber (sponge)；Explosion component employed in formula preferably with
Ammonium nitrate and the water-in-oil emulsion explosive matrix that sodium nitrate is primary oxidizers.
2. in manufacturing process, after explosive cooling and shaping, should also carry out heated-air drying processing to it, make explosive obtained
Water content is reduced, and is conducive to store, can not also be removed moisture content.
3. when being sensitized to process of dynamite substrate, it is contemplated that Explosion composite special dynamite is needed in different temperature items
Part and after storing for a long time still requires that explosive property is stablized.
High polymer a mixing flat board shaped explosive charge provided by the present invention is compared with existing explosive welding explosive with following several
Aspect advantage：
A. the addition of high molecular polymer carrier makes Density of Emulsion Explosive decline, to reduce its explosion velocity, while detonation
Stablize, performance is uniform, it is made to be more suitable for explosive welding.
B. production efficiency is improved, cumbersome process when conventional explosives are laid is eliminated, only needs be in tablet in cloth medicine
The explosive of shape is laid on metallic plate, time saving and energy saving, is not influenced substantially by natural climate.
C. in big plate compound tense, if laying conventional explosives, uneven thickness is laid since the flexure of compound plate will produce explosive, it is quick-fried
Speed will it is uneven with drug thickness and change, seriously affect the welding quality of explosive clad plate.High polymer mixing using the present invention is flat
After plate explosive, explosive is well combined with compound plate, and the even density consistency of thickness of tablet explosive, and the quality of composite plate can be made big
Amplitude improves.
D. safety is good, the safe and convenient in storage, transportational process.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is that explosive of the present invention lays schematic diagram；
Fig. 2 is tablet explosive provided by the present invention；
Fig. 3 is Emulsion Explosive Production flow chart of the present invention.
In conjunction with attached drawing, reference numeral is as follows in the embodiment of the present invention：
1- detonator 2- high polymers are bonded tablet shaped explosive charge 3- compound plate 4- substrates
5- high polymer a mixing flat board shaped explosive charge schematic diagrames.
Claims (6)
1. a kind of rollable blasting explosive for explosion welding, it is characterized in that containing oxidant, fuel agent, water, emulsifier, density adjuster
And additional a small amount of sensitizer, the explosive for explosive welding etc. purposes.
2. a kind of rollable blasting explosive for explosion welding according to claim 1, it is characterized in that low density material is unit weight is
0.01~0.1g/cm3High molecular material.
3. a kind of rollable blasting explosive for explosion welding according to claim 1,2, it is characterized in that the low density material
It is the expanded materials such as polyurethane or polystyrene.
4. a kind of rollable blasting explosive for explosion welding according to claim 1,2,3, manufacturing method is characterized in aoxidize
Agent salt and water after metering, are heated to 80 DEG C or more, and be stirred, after so that salt is completely dissolved and is formed aqueous solution, slowly
Ground is added in the mixing oil phase of fuel agent, emulsifier, under quick stirring action, gradually forms pasta water-in-oil type explosion
Property emulsification night or matrix, when being cooled to 50~80 DEG C, be mixed into low density material and a small amount of sensitizer, be finally allowed to cool into
Type.
5. a kind of rollable blasting explosive for explosion welding according to claim 4, manufacturing method is to use heated-air drying, is removed
Moisture content in explosive, makes water content below 1%；Moisture content can not also be removed, it is viscous that a kind of explosive welding high polymer is made
The sheet of knot, thickness are adjustable (such as 5 millimeters -50 millimeters), the adjustable composite explosives of density.
6. a kind of rollable blasting explosive for explosion welding according to claim 4,5, it is characterized in that explosive is rollable formation
Tabular, the shape of sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282806.2A CN108467328A (en) | 2018-04-02 | 2018-04-02 | A kind of rollable blasting explosive for explosion welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282806.2A CN108467328A (en) | 2018-04-02 | 2018-04-02 | A kind of rollable blasting explosive for explosion welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108467328A true CN108467328A (en) | 2018-08-31 |
Family
ID=63262524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810282806.2A Pending CN108467328A (en) | 2018-04-02 | 2018-04-02 | A kind of rollable blasting explosive for explosion welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108467328A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113087583A (en) * | 2020-01-09 | 2021-07-09 | 西南科技大学 | Low-detonation-velocity emulsion explosive |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA962067A (en) * | 1970-12-16 | 1975-02-04 | Richard Fox | Explosive composition of matter |
| US3870578A (en) * | 1962-07-24 | 1975-03-11 | Us Army | Polyurethane propellant |
| CN1034264A (en) * | 1987-05-22 | 1989-07-26 | 淮南矿业学院 | Low density grainy emulsified explosive |
| CN107200670A (en) * | 2017-06-21 | 2017-09-26 | 中国科学技术大学 | A kind of low blasting speed emulsion and its application |
-
2018
- 2018-04-02 CN CN201810282806.2A patent/CN108467328A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3870578A (en) * | 1962-07-24 | 1975-03-11 | Us Army | Polyurethane propellant |
| CA962067A (en) * | 1970-12-16 | 1975-02-04 | Richard Fox | Explosive composition of matter |
| CN1034264A (en) * | 1987-05-22 | 1989-07-26 | 淮南矿业学院 | Low density grainy emulsified explosive |
| CN107200670A (en) * | 2017-06-21 | 2017-09-26 | 中国科学技术大学 | A kind of low blasting speed emulsion and its application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113087583A (en) * | 2020-01-09 | 2021-07-09 | 西南科技大学 | Low-detonation-velocity emulsion explosive |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180831 |